Street-railway



(No Model.) 3 Sheets-'-Sheet 1.

W. L. JUDSON. STREET RAILWAY.

No. 423,871. Patented Mar. 18, 1890.

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N. PEI'ERS. Phnlmumographw. Washingmn. n. c.

' (No Model.)

W. L. JUDSON. STREET RAILWAY.

' Paten d Mar 18, 1890.

3 Sheets--Sheet 2.

(No Model.) s SheetsSheet a.

W. L. J UDSON. STREET RAILWAY.

No. 423,871. Patented Mar. 18,1890.

" N. PETERS Pholo-Lilhogmpher, Wnhinghm'D. c.

UNITED STATES PATENT OFFICE.

'- VVHITCOMB. L. JUDSON, OF MINNEAPOLIS, MINNESOTA.

STREET- RAILWAY.

SPECIFICATION forming part of Letters Patent No. 423,871, dated March 18, 189Q. Application filed July 30, 1889, Serial No. 319,185. (No model.)

To all whom it mayconccrn:

Be it known that I, WHITCOMB L. J UDSON, a citizen of the United States, and a resident of the city of Minneapolis, county of Hennepin, State of Minnesota, have invented a certain new and useful Improvement in Street-Railways, of which the following is a specification, reference being had to the accompanyin g drawings.

My invention relates to that system of power street-railways invented by me upon which Letters Patent of the United States were issued May 7, 1889, under No. 402,933, en-

titled Street-Railway, and is in the nature of improvements in certain features of the construction for the better application of the system therein described. In that system, as will appear on reference to said former patent, I use a sectional driving drum or shaft extending along the line of the cars travel, and revolve the same by stationary motors located at suitable intervals. The rotary motion of the drum is converted into a rectilinear motion on the car by friction-Wheels connected with the car adapted to engage with the drum at an angle to its axis, the wheels being adjustable to different angles for varying the speed, power, and direction of the car. The drum-sections are all straight, the necessary curvature and grades being secured by angular adjustment at the coupling-spaces. In other words, the curve-sections of the drum are relatively short and are arranged tangentially to the curve. To render this peculiar converting mechanism most effective, all the friction-wheelsshould be capable of continuous and equably-distributed traction regardless of the curvature or grades of the track and drum, except when passing the coupling-spaces. The traction should be uniformly variable at will from a common source, and the friction-wheels in all their adjustments should always take a common pitch-line when all on the same straight section of the drum, and as near an approximation thereto as is possible when the car is traversing curves, with some of the frictionwheels on one straight section and some on another straight section, and at an angle thereto. As the wheels are mounted in couples engaging opposite sides of the drum,the wheels on the opposite sides must swing in opposite directions to take like pitch-lines. The adj ust ment should be made froma common source.

common spider frame or truck, all the parts of which are rigid with each other, as shown in my former patent, I divide the truck into two parts and mount one couple of wheels on each half of the truck. I then connect the half-trucks by a vertical pivot in such amanner as to permit either to turn independently of the other in the horizontal, but not in the vertical, plane. Thevertical pivot-shaft or king-bolt is in turn pivotally connected to the car-body, so that it may swing in the vertical plane; hence the wheels will readily adapt themselves to curves and grades.

The car-body is vertically adjustable on the car-axles from a single lever, thus uniformly varying the tract-ion. To effect this adjustment in the construction shown, the car is provided with hollow hangers having sliding boxes, in which the axles are journaled, and a vertically-movable block above the same, preferably spring-seated on the boxes. On the car are mounted shafts having eccentrics bearing against said sliding blocks operated from a common lever. Other constructions might be used. To effect the angular adjustment of the wheels, I empoly apair of draw bars or rods mounted in guides under the car-body provided at the same ends with racks on the interior opposing faces engaging with a pinion on a vertical shaft mounted 011 the car and provided with a handwheel for operatin g the same. Separate reachrods extend from the draw-bars to each of the wheels, the connection being made by balland-socket joints, and all the wheels on the same side of the drum being connected to the draw-bar on that side; hence on turning the hand-wheel the draw-bars will be moved in opposite directions, and in virtue of the ball-and-socket joints of the reach-rods and the pivotal connection of the trucks, the Wheels will take common pitch-lines or angles in their different adjustments.

In the accompanying drawings Ihave illustrated the above-described forms of my invention as applied to a mine road or tramway. Therein, like letters referring to like parts throughout, Figure 1 is an end elevation; Fig. 2, a view partly in side elevation and partly in longitudinal vertical section, with some parts broken away; and Fig. 3 is a plan with some parts removed.

A is the road bed or track. 13 is the drum; C, the bearing supporting the same.

D is the car-body; E, the car-truck axles, and E the car-wheels. The axles are provided with extensions 6 beyond the outside of the wheels.

F are the hollow hangers rigidly secured to the ear-body. G are. the sliding boxes therein for the extension 6 of the car-axles.

H is the vertically-movable block in the hollow hangers.

h is the spring between the boxes and the blocks.

J J are the shafts on the car-frame provided with eccentrics K and K.

L is a hand-leveron the shaft J, and L is a crank-arm on the shaft J. L is a connecting-rod uniting the two.

M is a notched segment, and M a pawl 011 the lever-arm L for locking the same together.

P P are the two-part or divided trucks, provided with hinged jaws p and p.

Q is the king-bolt or vertical shaft pivotally connecting the double truck. The kingbolt is T-shaped or provided with right-angled extensions q at its top journaled in suitable bearings q, iixed to the car-body.

R are the friction-wheels swiveled in the trucks P and P.

S S are the right and left draw-bars, respectively provided with raclvfaces on their forward ends.

S are the guides fixed to the under side of the car-body, in which the draw-bars are mounted.

T is the vertical shaft on the front end of the car, provided with pinion T, engaging with the racks of the draw-bars, and the handwheel T for operating the same.

7 are the reach-rods connected to the friction-wheel and the draw-bars by ball-andsocket joints X.

Y is a carrying-roller on the truck P P, and Z is a coupling-space bridge on the boxes of the drum-bearing C.

The ball and sockets constitute universal joints. Any other universal joints would answer equally well.

The operation is evident from the description already given.

What I claim, and desire to secure by Letters Patent, is as follows:

1. The combination, with a movable car and a drivingdrum extending along the line of travel, of a two-part or divided friction-wheel truck pivotally connected together and having a common connection with the car, and friction-wheels on said truck engagcable with the drum at an angle to its axis.

2. The combination, with a movable car and a (lrivingdrum, of a two-part friction-wheel truck pivotally connected together and having a common connection with the car, and friction-wheels on said truck angularly adjustable with reference to said drum and engageable therewith.

The combination, with a movable car and a driving-drum, 01": a pivotally-connected twopart truck having a common connection with the car, and friction-wheels mounted on said truck in couples, one couple on each part of the truck, engageable with the opposite sides of said drum.

4:. The combination, with amovable ear and a driving-drum, of a two-part truck pivotally connected together and having a common connection with the car, and sets of angularlyadjustable friction-wheels mounted in couples on said truck, one couple on each part thereof, engageable with the opposite sides of said drum.

5. The combination, with a movable car and a driving-drum, of a two-part truck, a pivot bolt or shaft pivotally connecting the two parts of the truck and pivotally connected to the car, and friction-wheels mounted on said truck, engageable with said drum, substantially as described.

6. The combination, with the movable car and the driving-drum, of the two-part truck provided with hinge-jaws, the T-shaped kin gbolt or pivot-shaft uniting said jaws and having its angular extensions journaled on the ear, and the sets of angularly-adjustable friction-wheels mounted. in couples on said truck, one couple on each part of the truck and engageable with the opposite sides of said drum, substantially as described.

7. The combination, with a movable car and a driving-drum, of friction-wheel trucks connected to the car, angularly-adjustable frietioii-wheels mounted in couples on said truck, eugageable with opposite sides of the drum, pairs of oppositelyuilovable draw-bars on the car-body, and connections from the draw-bars to the wheels, all the wheels on one side of the drum being connected to the draw-bar on that side, substantially as described.

8. The combination, with a movable car and a driving-drum, of friction-wheel trucks connected. with the car, angularly-adj ustable friction-whcels mounted on said truck in couples, engageable with opposite sides of said drum, pairs of draw-bars on the car provided at the same ends with racks on their interior opposing faces, a shaft on the car provided with a pinion engaging both of said racks, and connections from said draw-bars to said wheels, substantially as described.

9. The combination, with a movable car and a driving-drum, of friction-wheel trucks eonnccted to the car, angularly-adjustable friction-whecls on said trucks engageable with the drum, and adj usting-rods from the wheels to the car connected to one or both by universal joints.

10. The combination, with a movable car and a driving-drum, of friction-wheel trucks connected to the car, angularly-adjustable friction-wheels mounted on said trucks in couples en gageable with opposite sides of said drum, a pair of oppositely-movable draw-bars on the car, and reach-rods from the respective draw-bars to the wheels on the same side connected to the same by ball-and-socket joints, substantially as described.

11. The combination, with the cauand the drum, of the friction-Wheel trucks connected to the car, the angularly-adjustable frictionwheels in couples on the truck, the oppositelymovable draw-bars on the car provided'at the same ends with opposing racks, the shaft on the car provided with a pinion engaging said racks, and the reach-rods from the drawbars to the wheels on same sides, connected to both by ball-and-socket joints, substantially as described.

12. The combination, with the car and the drum, of the pivotally-connected two-parttruck having a common connection with the car, the adjustable friction-wheels in couples, one couple on each part of said truck, the oppositely-movable draw-bars on the car, and the reach-rods from the bars to the wheels connected to the same by universal joints, substantially as described.

13. The combination, with the car and the drum, of the two-part truck, the pivot-bolt connecting the parts of the truck and pivotally connected to the car, the adjustable friction-wheels in couples, one each on each part of the truck, the oppositely-movable drawbars on the car, and the reach-rods from the respective bars to the friction-wheels 011 the same side connected to the same by universal joints, substantially as described.

14. The combination, with a car-track and a driving-drum, of car-trucks movable on said track, a car-body 011 said trucks adjustable at right angles thereto, and fIlClElOIIJVhGC-Bl trucks secured to said car-body provided with friction-wheels engageable with said drum at an angle to its axis, substantially as described. 15. The combination, with a car-track and a driving-drum, of car-trucks movable on said track, a car-body 011 said truck adjustable at right angles thereto, friction-Wheel trucks secured to said car-body having friction-wheels engageable with said drum at an angle to its axis, and a system of levers on the car having its base of resistance on said trucks for adj usting said car-body to vary the traction of the friction-wheels, substantially as described. 16. The combination, with the car-track, the driving-drum, and the car-trucks, of the car-body having hangers provided with adj ustable axle-boxes in which the car-truck axles are j ournaled, eccentrics 011 the carbody having their base of resistance on said axles for adjusting the car-bod y, and frictionwheel trucks secured to the car-body, and friction wheels on said trucks engageable with said drum, substantially as described.

17. The combination, with the track, the drum, and the car-trucks, of the car-body provided with hangers having car-axle boxes adjustably mounted therein, the sliding blocks spring-seated on said boxes, the cocentric-shafts on the car provided with eccentrics bearing againstsaid blocks, the common lever with connections to said shafts for operating the same, the friction-wheel trucks secured to the car, and the friction-wheels on said friction-trucks engageable with the drum, substantially as described.

18. The combination, with a movable car, of a driving-drum extending along the line of travel, a friction-wheel truck having a pivotal connection with the car permitting a swinging movement lengthwise of the drums, and friction-wheels mounted on said track engageable with said drum.

\VHITCOMB L. JUDSON.

In presence of- J AS. F. WILLIAMsON, EMMA F. ELMoRn. 

